DriverCove

BTL - Bus Controllers and Ports - BTL-270 USB Key (3.4.2.147) Driver 3.4.2.147

by BTL8.18764-bitSHA-256 verified

Manufacturer
BTL
Device
BTL - Bus Controllers and Ports - BTL-270 USB Key (3.4.2.147)
Driver version
3.4.2.147
Release date
February 2, 2010
Supported Windows
Windows 8.1, Windows 8, Windows 7
Architecture
64-bit (x64)
File size
43 KB
File name
20372421_c763ed9231576025e0b75c60e4795d9ae49e711c.cab
Digital signature
Signed - catalog CYUSB.cat
INF version
02/02/2010,3.4.2.147
INF provider
BTL
Device class
USB
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
f4aa07217e29364695b5cffb7a3041fe7723c0f828e235061e12bb19106592df

Supported hardware IDs (3)

Compare with your device: Device Manager → right-click the device → Properties → Details → Hardware Ids. If one of the values above matches, this driver supports your hardware.

How to install

  1. Create a restore point(Start → "Create a restore point" → Create), so you can roll back if anything goes wrong.
  2. Verify compatibility: your Windows version (Windows 8.1, Windows 8, Windows 7) and architecture (x64)must match this driver, and your device's Hardware ID should appear in the list above.
  3. Download the file using the button - it comes directly from Microsoft Update Catalog.
  4. Optionally verify the checksum: open PowerShell, run Get-FileHash your-download.cab -Algorithm SHA256 and compare with the SHA-256 above.
  5. Extract the .cab archive: right-click → Extract All, or run expand -F:* file.cab C:\driver\ in Command Prompt.
  6. Install via Device Manager: right-click your device → Update driver → Browse my computer → point to the extracted folder. Alternatively run pnputil /add-driver C:\driver\*.inf /install.
  7. Check Device Manager: the device should show no warning icons, and the driver version should match.

How to roll back

If the device stops working after the update: Device Manager → right-click the device → Properties → Driver tab → Roll Back Driver. If the button is greyed out, use the restore point from step 1 (Start → "Recovery" → Open System Restore).